CN102393106B - Dual-channel condenser with heat recovery and condensing temperature control structure - Google Patents
Dual-channel condenser with heat recovery and condensing temperature control structure Download PDFInfo
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- CN102393106B CN102393106B CN 201110401217 CN201110401217A CN102393106B CN 102393106 B CN102393106 B CN 102393106B CN 201110401217 CN201110401217 CN 201110401217 CN 201110401217 A CN201110401217 A CN 201110401217A CN 102393106 B CN102393106 B CN 102393106B
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Abstract
The invention discloses a dual-channel condenser with a heat recovery and condensing temperature control structure, belonging to condensers, and solving the problems of unstable operation and condensing temperature of the existing equipment. The dual-channel condenser has a structure that the tube body of a tubular heat exchanger is divided into two cavities; a refrigerant inlet and a refrigerantoutlet are respectively formed on each cavity and connected with one compressor in a single cold type unit; a cooling water outlet and a cooling water inlet are formed on one end of one cavity and are communicated through a condensation heat exchange tube penetrating through the heat exchanger tube; a hot water circulation outlet and a hot water circulation inlet are formed on one end of the other cavity and are communicated through a heat recovery heat exchange tube penetrating through the heat exchanger tube; a by-pass electric valve is connected between the cooling water outlet and the cooling water inlet; and the valve control end of the by-pass electric valve is connected with a temperature controller communicated with the inside of the condensation heat exchange tube. Regardless of the operating mode of unit load in the condenser, heat exchange can be fully performed in the heat exchanger, the condensing temperature is stable, the operation efficiency of the unit is high, and simultaneously, one heat exchanger can correspond to two compressors, so that the unit structure is simpler.
Description
Technical field
The present invention relates to condenser, refer in particular to a kind of Dual-channel condenser with recuperation of heat and condensing temperature control structure.
Background technology
The recuperation of heat of handpiece Water Chilling Units mainly refers to the recycling of condenser heat, comes hot water preparing to satisfy user's various user demands by recycling the condenser heat that produces in the unit kind of refrigeration cycle.Recuperation of heat mainly realizes the recovery of condenser heat by heat recovering heat exchanger heat exchange between cold-producing medium and recirculated water.The Condensation Heat Recovery Technology that occurs the earliest is outside serial plate type heat exchanger and the recirculated water heat exchange hot water preparing in common handpiece Water Chilling Units, the problems such as water temperature is uncontrollable, condensing pressure is unstable, system oil return is difficult in use appear in this mode, now are eliminated.
The single cold type unit that integrated heat recovery function occurred again recently, the form of heat recovering heat exchanger mainly contain two kinds: heat regenerator and condenser are separate, connect in the mode of serial or parallel connection.This mode part of appliance is many, making is complicated, and reliability is low, and the refrigerant loop resistance is large, the height of demanding a lower price, and operational efficiency is low, particularly affects efficient when operation at part load.Another kind of mode is that heat regenerator and condenser are integrated in the housing, but each this heat exchanger can only corresponding refrigerating circuit, i.e. corresponding heat exchanger of compressor assembly is for the unit of a plurality of compressors, need a plurality of this heat exchangers, make complicated, and, when the compressor operating that has and some compressors when not moving, cause the temperature between the different circuit uneven, heat transfer temperature difference between cold-producing medium and the recirculated water is large, and condensing pressure is high, and system effectiveness reduces.
In addition, present water-cooling type recuperation of heat unit is owing to can't accurately control condenser temperature, and condensation temperature is unstable, and the water temperature of recuperation of heat circulation side also just can't accurately be controlled, and unit operation efficiency is low in the sub-load situation.
Summary of the invention
The objective of the invention is in order to overcome the problem of prior art existence, provide a kind of and under various operating conditions, all can stablize, efficiently move, and condensation temperature is stable, thereby can accurately control a kind of Dual-channel condenser with recuperation of heat and condensing temperature control structure of recuperation of heat circulation side water temperature.
The objective of the invention is to be achieved through the following technical solutions:
Beneficial effect of the present invention:
The function of integrated heat regenerator and the condensation function of common condenser in the condenser of this structure.
Use this condenser, no matter unit is in oepration at full load or operation at part load, namely no matter whether the refrigerant loop at the first cavity or the second cavity place is in running order, medium in the heat exchanger can both be fully and the interior cold-producing medium heat exchange of body, unit operation efficiency is high, simple in structure, avoided the drawback of existing various recuperation of heat modes.
In addition, adopt microcomputer controller automatically to control owing to entering the discharge of condenser in the condenser of this structure, make no matter unit is under the oepration at full load state or under the operation at part load state, it is stable that condensation temperature keeps, thereby reach the purpose of accurate control recuperation of heat circulation side water temperature, save system's operation energy consumption.
In addition, compare other heat recovery machine group system, adopt this kind with the Dual-channel condenser of heat recovery function so that heat exchanger can corresponding two compression circuit systems, the pipe-line system of unit is more succinct, and pipeline is short, and is easy to connect, reduces unit volume.
For further specifying above-mentioned purpose of the present invention, design feature and effect, the present invention is described in detail below with reference to accompanying drawing.
Description of drawings
Fig. 1 is the Dual-channel condenser structural representation with recuperation of heat and condensing temperature control structure of the present invention.
The specific embodiment
Accompanying drawing below in conjunction with embodiment is elaborated to the specific embodiment of the present invention.
The present invention have the Dual-channel condenser of recuperation of heat and condensing temperature control structure integrated the function of heat regenerator and the condensation function of common condenser, it is provided with three groups of import and export: cold-producing medium import and export, cooling water outlet and inlet and hot water circuit are imported and exported, concrete structure is referring to Fig. 1, and the structure of this condenser is:
A pipe heat exchanger 1 is provided with a metal baffle 4 in the middle of it, and the body of heat exchanger 1 is divided into the first cavity 2 and the second cavity 3 two parts, and metal baffle 4 places the part in the body to be provided with several through holes;
Be respectively equipped with refrigerant inlet 6 on the first cavity 2 and the second cavity 3,5 and refrigerant outlet 7, the cold-producing medium import and export 6 of 8, the first cavitys 2,7 with the cold-producing medium import and export 5 of the second cavity 3,8 each be connected with a compressor in the single cold type unit, make heat exchanger that two passages be arranged;
The outboard end of the first cavity 2 is the cooling water circulation side, this side is respectively equipped with cooling water inlet 10 and coolant outlet 9, cooling water inlet 10 and coolant outlet 9 are communicated with by condensing heat-exchanging pipe (not shown), the contact site of cooling water import and export 10, the 9 and first cavity seals with end socket respectively, this condensing heat-exchanging pipe is turned by 2 through holes of described metal baffle 4 and is turned back and in heat exchanger 1 body (in 1 two cavitys of heat exchanger) the through hole seal welding of condensing heat-exchanging pipe and metal baffle 4;
The outboard end of the second cavity 3 is the heat recovery water circulation side, this side is respectively equipped with hot water circuit import 12 and hot water circuit outlet 11, hot water circuit import 12 and hot water circuit outlet 11 is communicated with by recuperation of heat heat exchanger tube (not shown), the contact site of hot water circuit import and export 12, the 11 and second cavity seals with end socket respectively, this recuperation of heat heat exchanger tube is turned by 2 through holes of described metal baffle 4 and is turned back and in heat exchanger 1 body (in 1 two cavitys of heat exchanger) the through hole seal welding of recuperation of heat heat exchanger tube and metal baffle 4.
Above-mentioned condensing heat-exchanging pipe and recuperation of heat heat exchanger tube all can adopt copper or corronil or titanium to make.
When the single cold type unit carries out the recuperation of heat operation, flow system cryogen in the body of heat exchanger 1, hot water is by hot water circuit import 12 and the hot water circuit outlet 11 recuperation of heat heat exchanger tubes that enter in the body, because the recuperation of heat heat exchanger tube is in body, make the cold-producing medium in hot water and the body carry out heat exchange, absorb the further heat hot water of heat, simultaneously the cooling refrigeration agent.
When the single cold type unit freezes or heating mode when operation, cooling water enters condensing heat-exchanging pipe in the body by cooling water inlet 10 and coolant outlet 9, because condensing heat-exchanging pipe in body, makes the cold-producing medium heat exchange in cooling water and the body, cooling refrigeration agent.
Be in oepration at full load or operation at part load regardless of unit in the condenser of this structure, namely no matter whether the refrigerant loop at the first cavity 2 or the second cavity 3 places is in running order, medium in the heat exchanger can both be fully and the interior cold-producing medium heat exchange of body, and unit operation efficiency is high.In addition, compare other heat recovery machine group system, adopt this kind with the Dual-channel condenser of heat recovery function so that heat exchanger can corresponding two compression circuit systems, the pipe-line system of unit is more succinct, and pipeline is short, and is easy to connect, reduces unit volume.
Be connected a by-pass electrovalve door 13 between described cooling water inlet 10 and the coolant outlet 9, the control end of by-pass electrovalve door 13 connect one with the interior temperature controller that is communicated with of condensing heat-exchanging pipe.Described temperature controller comprises: place the temperature sensor 14 in the described condensing heat-exchanging pipe; That be connected with temperature sensor 14 outputs and place the outer microcomputer controller 15 of pipe heat exchanger 1; The frequency conversion water circulating pump 16 that is connected with the output of microcomputer controller 15; The output of frequency conversion water circulating pump 16 connects the control end of described by-pass electrovalve door 13.
Above-mentioned microcomputer controller 15 is according to the situation of change of condensation temperature in the condensing heat-exchanging pipe, by with the setting value contrast, the output control signal, the operation of this control signal control frequency conversion water circulating pump 16, the discharge that frequency conversion water circulating pump 16 control bypath valves 13 enter the condensing heat-exchanging pipe of condenser, condensation temperature is regulated in variation by discharge, thereby reach the purpose of accurate control recuperation of heat circulation side water temperature, the stable operating condition of final realization, unit operation efficiency is high, especially in the sub-load situation, guarantee the efficient operation of unit.
Those of ordinary skill in the art will be appreciated that, above embodiment illustrates purpose of the present invention, and be not as limitation of the invention, as long as in essential scope of the present invention, all will drop in the scope of claim of the present invention variation, the modification of the above embodiment.
Claims (4)
1. Dual-channel condenser with recuperation of heat and condensing temperature control structure is characterized in that condenser structure is:
A pipe heat exchanger (1) is provided with metal baffle (4) in the middle of it, and the body of pipe heat exchanger (1) is divided into the first cavity (2) and the second cavity (3) two parts, and metal baffle (4) places the part in the body to be provided with several through holes;
Be respectively equipped with refrigerant inlet and refrigerant outlet on described the first cavity (2) and the second cavity (3), and the cold-producing medium import and export of each cavity each be connected with a compressor in the single cold type unit;
The outboard end of described the first cavity (2) is respectively equipped with cooling water inlet (10) and coolant outlet (9), and be communicated with by condensing heat-exchanging pipe, cooling water inlet (10), coolant outlet (9) seal with end socket respectively with the contact site of the first cavity, described condensing heat-exchanging pipe is turned by 2 through holes of described metal baffle (4) and is turned back and in the heat exchanger body through hole seal welding of condensing heat-exchanging pipe and metal baffle (4);
The outboard end of described the second cavity is respectively equipped with hot water circuit import (12) and hot water circuit outlet (11), and be communicated with by the recuperation of heat heat exchanger tube, hot water circuit import and export (12,11) seals with end socket respectively with the contact site of the second cavity (3), described recuperation of heat heat exchanger tube is turned by 2 through holes of described metal baffle (4) and is turned back and in the heat exchanger body through hole seal welding of described recuperation of heat heat exchanger tube and metal baffle (4);
Be connected a by-pass electrovalve door (13) between described cooling water inlet (10) and the coolant outlet (9), the control end of by-pass electrovalve door (13) connect one with the interior temperature controller that is communicated with of condensing heat-exchanging pipe.
2. the Dual-channel condenser with recuperation of heat and condensing temperature control structure as claimed in claim 1 is characterized in that:
Described temperature controller comprises: place the temperature sensor (14) in the described condensing heat-exchanging pipe; That be connected with temperature sensor (14) output and place the outer microcomputer controller (15) of pipe heat exchanger (1); The frequency conversion water circulating pump (16) that is connected with the output of microcomputer controller (15); The output of frequency conversion water circulating pump (16) connects the control end of described by-pass electrovalve door (13).
3. the Dual-channel condenser with recuperation of heat and condensing temperature control structure as claimed in claim 1 or 2 is characterized in that:
Described condensing heat-exchanging pipe adopts copper or corronil or titanium to make.
4. the Dual-channel condenser with recuperation of heat and condensing temperature control structure as claimed in claim 1 is characterized in that:
Described recuperation of heat heat exchanger tube adopts copper or corronil or titanium to make.
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| CN 201110401217 CN102393106B (en) | 2011-12-06 | 2011-12-06 | Dual-channel condenser with heat recovery and condensing temperature control structure |
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| CN 201110401217 CN102393106B (en) | 2011-12-06 | 2011-12-06 | Dual-channel condenser with heat recovery and condensing temperature control structure |
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| CN102393106A CN102393106A (en) | 2012-03-28 |
| CN102393106B true CN102393106B (en) | 2013-10-23 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423930B (en) * | 2012-05-23 | 2017-03-15 | 杭州三花研究院有限公司 | A kind of ice machine |
| CN106352610A (en) * | 2016-10-17 | 2017-01-25 | 平湖迈柯罗新材料有限公司 | Condensing pipe for aqueous fluid |
| CN110398164A (en) * | 2019-06-27 | 2019-11-01 | 中国船舶重工集团公司第七一九研究所 | A kind of heat exchanger |
| CN110926045B (en) * | 2019-11-22 | 2020-11-13 | 珠海格力电器股份有限公司 | Water chilling unit and control method thereof |
| CN112797607B (en) * | 2021-01-04 | 2023-02-24 | 珠海格力电器股份有限公司 | Heat recovery system, control method and air conditioning unit |
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| CN2125118U (en) * | 1992-07-07 | 1992-12-16 | 刘林沛 | Heat exchanger |
| CN200975813Y (en) * | 2006-06-12 | 2007-11-14 | 秦皇岛天河人工环境科技有限公司 | Heat-reclaiming device of water chilling unit shell tube type condenser |
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| CN201892448U (en) * | 2010-12-14 | 2011-07-06 | 堃霖冷冻机械(上海)有限公司 | Integrated shell-and-tube heat exchanger |
| CN202470548U (en) * | 2011-12-06 | 2012-10-03 | 克莱门特捷联制冷设备(上海)有限公司 | Dual-channel condenser with heat recovery and condensing temperature control structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4151928B2 (en) * | 1999-01-14 | 2008-09-17 | 株式会社東洋製作所 | Water heat exchanger |
| US6536231B2 (en) * | 2001-05-31 | 2003-03-25 | Carrier Corporation | Tube and shell heat exchanger for multiple circuit refrigerant system |
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2125118U (en) * | 1992-07-07 | 1992-12-16 | 刘林沛 | Heat exchanger |
| CN200975813Y (en) * | 2006-06-12 | 2007-11-14 | 秦皇岛天河人工环境科技有限公司 | Heat-reclaiming device of water chilling unit shell tube type condenser |
| CN101270946A (en) * | 2008-05-13 | 2008-09-24 | 上海环球制冷设备有限公司 | Heat reclamation type condenser device and use method |
| CN201569223U (en) * | 2009-12-16 | 2010-09-01 | 宁波德贝里克电器有限公司 | Heat pump condensation heat exchanger |
| CN201892448U (en) * | 2010-12-14 | 2011-07-06 | 堃霖冷冻机械(上海)有限公司 | Integrated shell-and-tube heat exchanger |
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